import java.util.ArrayList;
import java.util.Deque;
import java.util.LinkedList;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User:龙宝
 * Date:2024-09-11
 * Time:18:10
 */
public class test {
    public static void main(String[] args) {
        Deque<Integer> list = new LinkedList<Integer>();
    }
}
